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Last active December 19, 2015 22:49
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scala Option to Guava Optional
Raw
build.sbt
name := "ScalaOptionToGuavaOptional"
scalaVersion := "2.10.2"
libraryDependencies += "com.google.guava" % "guava" % "14.0.1"
libraryDependencies += "com.google.code.findbugs" % "jsr305" % "2.0.1"
Raw
gistfile1.md

Option -> Optional

one-liner to make a Guava Optional from a scala Option (keep in mind that Guava Optionals are not monadic)

Todo

Implicit conversion example

Raw
guava_optional.scala
import com.google.common.base.Optional
def toOptional[T >: Null](x : Option[T]) : Optional[T] = Optional.fromNullable[T](x.orNull[T])
//examples
toOptional(None)
toOptional(Some("dude"))
toOptional(Some(3))
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